People make time for what they want to make time for. Those who are on a spiritual enlightenment journey want a specific desired outcome. The truth is to become more spiritually consciousness a person must prioritize what they ultimately desire for their life.
Many great spiritual gurus started with "nothing" but potential. As you are managing this consciousness called life you will have to trust in the law of pure potential. You will need to realize that nothing "just" happens, rather all things are intentional.
The flesh can become weak but the spirit has no limitations. The best response to this question is "what motivates you?" If they are things that are tangible you will lose motivation quickly. If they are things that are spiritually eternal you will never lose sight of the ultimate prize.
Your purpose should always be connected with your passion. Once you find out what you are passionate about you will begin to walk in your purpose. Keep in mind you were not created to "do" anything in life. Rather you were designed to "Be" what your creator created you to be.
A true spiritual master will never set a "what" that is greater than their "why". As a spiritually enlightened person you realize that goals are often tied to passions, desires, will and knowledge. As you grown spiritually you will become more aware that crushing BIG goals is ultimately tied to the limitless self.
The answer to this question is simple; when you are making decisions, who's voice are you listening to? The truth is we are always at war with the self and the ultimate. Freud would say our id, ego and super-ego are always at war. Who wins the fight is in the hands of the referee...you!